Function Parser.parseAsmTypePrefix
Parses an AsmTypePrefix
Note that in the following grammar definition the first identifier must be "near", "far", "word", "dword", or "qword". The second identifier must be "ptr".
asmTypePrefix: Identifier Identifier? | 'byte' Identifier? | 'short' Identifier? | 'int' Identifier? | 'float' Identifier? | 'double' Identifier? | 'real' Identifier? ;