code/codegen: Parse 'char' types in function signatures.
code/codegen: Parse 'char' types in function signatures.

google/gapid,google/gapid,pmuetschard/gapid,google/gapid,Qining/gapid,google/agi,Qining/gapid,google/agi,pmuetschard/gapid,pmuetschard/gapid,google/agi,pmuetschard/gapid,google/gapid,google/agi,Qining/gapid,google/agi,Qining/gapid,google/gapid,google/gapid,google/agi,pmuetschard/gapid,google/agi,Qining/gapid,google/agi,pmuetschard/gapid,pmuetschard/gapid,google/gapid,pmuetschard/gapid,Qining/gapid,Qining/gapid,google/gapid,Qining/gapid