test: Match gccgo error messages.
test: Match gccgo error messages.

explicit.go:36:4: error: incompatible types in assignment (need explicit conversion)
explicit.go:41:4: error: incompatible types in assignment (type has no methods)
explicit.go:42:4: error: incompatible types in assignment (need explicit conversion)
explicit.go:45:5: error: incompatible types in assignment (need explicit conversion; missing method ‘N’)
explicit.go:48:9: error: invalid type conversion (need explicit conversion; missing method ‘N’)
explicit.go:51:4: error: incompatible types in assignment
explicit.go:51:7: error: invalid type conversion (need explicit conversion)
explicit.go:57:10: error: impossible type assertion: type does not implement interface (type has no methods)
explicit.go:62:10: error: impossible type assertion: type does not implement interface (incompatible type for method ‘M’ (different number of parameters))
explicit.go:67:5: error: incompatible type in initialization (type has no methods)
explicit.go:68:5: error: incompatible type in initialization (incompatible type for method ‘M’ (different number of parameters))
explicit.go:70:11: error: invalid type conversion (type has no methods)
explicit.go:71:11: error: invalid type conversion (incompatible type for method ‘M’ (different number of parameters))

R=rsc
CC=golang-dev
http://codereview.appspot.com/2139044

gnanderson/go,pombredanne/go-deleteme,apparentlymart/golang,gnanderson/go,ssrl/go,pombredanne/go-deleteme,tv42/old-go,h8liu/golang,gnanderson/go,pombredanne/go-deleteme,dsriram/golang,apparentlymart/golang,pombredanne/go-deleteme,h8liu/golang,gnanderson/go,pombredanne/go-deleteme,dsriram/golang,apparentlymart/golang,tv42/old-go,dsriram/golang,tv42/old-go,tv42/old-go,pombredanne/go-deleteme,apparentlymart/golang,h8liu/golang,h8liu/golang,gnanderson/go,ssrl/go,tv42/old-go,gnanderson/go,ssrl/go,dsriram/golang,apparentlymart/golang,ssrl/go,dsriram/golang,h8liu/golang,apparentlymart/golang,h8liu/golang,gnanderson/go,ssrl/go,tv42/old-go,dsriram/golang,dsriram/golang,ssrl/go,apparentlymart/golang,tv42/old-go,h8liu/golang,ssrl/go,pombredanne/go-deleteme