tests/cases/conformance/types/union/unionTypeCallSignatures.ts(9,43): error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(10,29): error TS2769: No overload matches this call.
  Overload 1 of 2, '(a: number): number | Date', gave the following error.
    Argument of type 'true' is not assignable to parameter of type 'number'.
  Overload 2 of 2, '(a: string): string | boolean', gave the following error.
    Argument of type 'true' is not assignable to parameter of type 'string'.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(15,29): error TS2769: No overload matches this call.
  Overload 1 of 2, '(a: number): number | Date', gave the following error.
    Argument of type 'true' is not assignable to parameter of type 'number'.
  Overload 2 of 2, '(a: string): string | boolean', gave the following error.
    Argument of type 'true' is not assignable to parameter of type 'string'.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(16,1): error TS2554: Expected 1 arguments, but got 0.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(19,32): error TS2345: Argument of type '10' is not assignable to parameter of type 'never'.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(20,32): error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'never'.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(21,1): error TS2554: Expected 1 arguments, but got 0.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(24,1): error TS2554: Expected 1 arguments, but got 0.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(26,36): error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(29,1): error TS2554: Expected 2 arguments, but got 0.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(30,1): error TS2554: Expected 2 arguments, but got 1.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(36,49): error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(37,12): error TS2554: Expected 1-2 arguments, but got 0.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(40,12): error TS2554: Expected 2 arguments, but got 1.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(42,49): error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(43,12): error TS2554: Expected 2 arguments, but got 0.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(48,49): error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(49,12): error TS2554: Expected 1-2 arguments, but got 0.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(55,45): error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(56,12): error TS2555: Expected at least 1 arguments, but got 0.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(59,12): error TS2554: Expected 2 arguments, but got 1.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(61,49): error TS2554: Expected 2 arguments, but got 3.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(62,45): error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(63,12): error TS2554: Expected 2 arguments, but got 0.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(69,45): error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(70,12): error TS2555: Expected at least 1 arguments, but got 0.
tests/cases/conformance/types/union/unionTypeCallSignatures.ts(73,12): error TS2554: Expected 2 arguments, but got 1.


==== tests/cases/conformance/types/union/unionTypeCallSignatures.ts (27 errors) ====
    var numOrDate: number | Date;
    var strOrBoolean: string | boolean;
    var strOrNum: string | number;
    
    // If each type in U has call signatures and the sets of call signatures are identical ignoring return types, 
    // U has the same set of call signatures, but with return types that are unions of the return types of the respective call signatures from each type in U.
    var unionOfDifferentReturnType: { (a: number): number; } | { (a: number): Date; };
    numOrDate = unionOfDifferentReturnType(10);
    strOrBoolean = unionOfDifferentReturnType("hello"); // error 
                                              ~~~~~~~
!!! error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
    unionOfDifferentReturnType1(true); // error in type of parameter
                                ~~~~
!!! error TS2769: No overload matches this call.
!!! error TS2769:   Overload 1 of 2, '(a: number): number | Date', gave the following error.
!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
!!! error TS2769:   Overload 2 of 2, '(a: string): string | boolean', gave the following error.
!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
    
    var unionOfDifferentReturnType1: { (a: number): number; (a: string): string; } | { (a: number): Date; (a: string): boolean; };
    numOrDate = unionOfDifferentReturnType1(10);
    strOrBoolean = unionOfDifferentReturnType1("hello");
    unionOfDifferentReturnType1(true); // error in type of parameter
                                ~~~~
!!! error TS2769: No overload matches this call.
!!! error TS2769:   Overload 1 of 2, '(a: number): number | Date', gave the following error.
!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
!!! error TS2769:   Overload 2 of 2, '(a: string): string | boolean', gave the following error.
!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
    unionOfDifferentReturnType1(); // error missing parameter
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2554: Expected 1 arguments, but got 0.
!!! related TS6210 tests/cases/conformance/types/union/unionTypeCallSignatures.ts:12:37: An argument for 'a' was not provided.
    
    var unionOfDifferentParameterTypes: { (a: number): number; } | { (a: string): Date; };
    unionOfDifferentParameterTypes(10);// error - no call signatures
                                   ~~
!!! error TS2345: Argument of type '10' is not assignable to parameter of type 'never'.
    unionOfDifferentParameterTypes("hello");// error - no call signatures
                                   ~~~~~~~
!!! error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'never'.
    unionOfDifferentParameterTypes();// error - no call signatures
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2554: Expected 1 arguments, but got 0.
!!! related TS6210 tests/cases/conformance/types/union/unionTypeCallSignatures.ts:18:40: An argument for 'a' was not provided.
    
    var unionOfDifferentNumberOfSignatures: { (a: number): number; } | { (a: number): Date; (a: string): boolean; };
    unionOfDifferentNumberOfSignatures(); // error - no call signatures
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2554: Expected 1 arguments, but got 0.
!!! related TS6210 tests/cases/conformance/types/union/unionTypeCallSignatures.ts:23:44: An argument for 'a' was not provided.
    unionOfDifferentNumberOfSignatures(10); // error - no call signatures
    unionOfDifferentNumberOfSignatures("hello"); // error - no call signatures
                                       ~~~~~~~
!!! error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
    
    var unionWithDifferentParameterCount: { (a: string): string; } | { (a: string, b: number): number; } ;
    unionWithDifferentParameterCount();// needs more args
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2554: Expected 2 arguments, but got 0.
!!! related TS6210 tests/cases/conformance/types/union/unionTypeCallSignatures.ts:28:69: An argument for 'a' was not provided.
    unionWithDifferentParameterCount("hello");// needs more args
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2554: Expected 2 arguments, but got 1.
!!! related TS6210 tests/cases/conformance/types/union/unionTypeCallSignatures.ts:28:80: An argument for 'b' was not provided.
    unionWithDifferentParameterCount("hello", 10);// OK
    
    var unionWithOptionalParameter1: { (a: string, b?: number): string; } | { (a: string, b?: number): number; };
    strOrNum = unionWithOptionalParameter1('hello');
    strOrNum = unionWithOptionalParameter1('hello', 10);
    strOrNum = unionWithOptionalParameter1('hello', "hello"); // error in parameter type
                                                    ~~~~~~~
!!! error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
    strOrNum = unionWithOptionalParameter1(); // error
               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2554: Expected 1-2 arguments, but got 0.
!!! related TS6210 tests/cases/conformance/types/union/unionTypeCallSignatures.ts:33:37: An argument for 'a' was not provided.
    
    var unionWithOptionalParameter2: { (a: string, b?: number): string; } | { (a: string, b: number): number };
    strOrNum = unionWithOptionalParameter2('hello'); // error no call signature
               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2554: Expected 2 arguments, but got 1.
!!! related TS6210 tests/cases/conformance/types/union/unionTypeCallSignatures.ts:39:87: An argument for 'b' was not provided.
    strOrNum = unionWithOptionalParameter2('hello', 10); // error no call signature
    strOrNum = unionWithOptionalParameter2('hello', "hello"); // error no call signature
                                                    ~~~~~~~
!!! error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
    strOrNum = unionWithOptionalParameter2(); // error no call signature
               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2554: Expected 2 arguments, but got 0.
!!! related TS6210 tests/cases/conformance/types/union/unionTypeCallSignatures.ts:39:76: An argument for 'a' was not provided.
    
    var unionWithOptionalParameter3: { (a: string, b?: number): string; } | { (a: string): number; };
    strOrNum = unionWithOptionalParameter3('hello');
    strOrNum = unionWithOptionalParameter3('hello', 10); // ok
    strOrNum = unionWithOptionalParameter3('hello', "hello"); // wrong argument type
                                                    ~~~~~~~
!!! error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
    strOrNum = unionWithOptionalParameter3(); // needs more args
               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2554: Expected 1-2 arguments, but got 0.
!!! related TS6210 tests/cases/conformance/types/union/unionTypeCallSignatures.ts:45:37: An argument for 'a' was not provided.
    
    var unionWithRestParameter1: { (a: string, ...b: number[]): string; } | { (a: string, ...b: number[]): number };
    strOrNum = unionWithRestParameter1('hello');
    strOrNum = unionWithRestParameter1('hello', 10);
    strOrNum = unionWithRestParameter1('hello', 10, 11);
    strOrNum = unionWithRestParameter1('hello', "hello"); // error in parameter type
                                                ~~~~~~~
!!! error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
    strOrNum = unionWithRestParameter1(); // error
               ~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2555: Expected at least 1 arguments, but got 0.
!!! related TS6210 tests/cases/conformance/types/union/unionTypeCallSignatures.ts:51:33: An argument for 'a' was not provided.
    
    var unionWithRestParameter2: { (a: string, ...b: number[]): string; } | { (a: string, b: number): number };
    strOrNum = unionWithRestParameter2('hello'); // error no call signature
               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2554: Expected 2 arguments, but got 1.
!!! related TS6210 tests/cases/conformance/types/union/unionTypeCallSignatures.ts:58:87: An argument for 'b' was not provided.
    strOrNum = unionWithRestParameter2('hello', 10); // error no call signature
    strOrNum = unionWithRestParameter2('hello', 10, 11); // error no call signature
                                                    ~~
!!! error TS2554: Expected 2 arguments, but got 3.
    strOrNum = unionWithRestParameter2('hello', "hello"); // error no call signature
                                                ~~~~~~~
!!! error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
    strOrNum = unionWithRestParameter2(); // error no call signature
               ~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2554: Expected 2 arguments, but got 0.
!!! related TS6210 tests/cases/conformance/types/union/unionTypeCallSignatures.ts:58:76: An argument for 'a' was not provided.
    
    var unionWithRestParameter3: { (a: string, ...b: number[]): string; } | { (a: string): number };
    strOrNum = unionWithRestParameter3('hello');
    strOrNum = unionWithRestParameter3('hello', 10); // error no call signature
    strOrNum = unionWithRestParameter3('hello', 10, 11); // error no call signature
    strOrNum = unionWithRestParameter3('hello', "hello"); // wrong argument type
                                                ~~~~~~~
!!! error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
    strOrNum = unionWithRestParameter3(); // error no call signature
               ~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2555: Expected at least 1 arguments, but got 0.
!!! related TS6210 tests/cases/conformance/types/union/unionTypeCallSignatures.ts:65:33: An argument for 'a' was not provided.
    
    var unionWithRestParameter4: { (...a: string[]): string; } | { (a: string, b: string): number; };
    strOrNum = unionWithRestParameter4("hello"); // error supplied parameters do not match any call signature
               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2554: Expected 2 arguments, but got 1.
!!! related TS6210 tests/cases/conformance/types/union/unionTypeCallSignatures.ts:72:76: An argument for 'b' was not provided.
    strOrNum = unionWithRestParameter4("hello", "world");
    