Function Parser.parseGccAsmInstruction
Parses an AsmInstruction using GCC Assembler
gccAsmInstruction: | expression ':' gccAsmOperandList? (':' gccAsmOperandList? (':' stringLiteralList)? )? ';' | expression ':' ':' gccAsmOperandList? ':' stringLiteralList ';' ':' declaratorIdentifierList ';' ;