tests/cases/conformance/parser/ecmascript5/FunctionDeclarations/parserFunctionDeclaration4.ts(2,10): error TS2389: Function implementation name must be 'foo'. ==== tests/cases/conformance/parser/ecmascript5/FunctionDeclarations/parserFunctionDeclaration4.ts (1 errors) ==== function foo(); function bar() { } ~~~ !!! error TS2389: Function implementation name must be 'foo'.