used tc.env as context in type extraction. 1) no more extending context with constants. The top level input has the env produced by of F*-typechecking of the module. 2) used utilities in tcenv.fsi
used tc.env as context in type extraction.
1) no more extending context with constants. The top level input has the env produced by of F*-typechecking of the module.
2) used utilities in tcenv.fsi

This change is untested, except for compilation.

YaccConstructor/FStar,msprotz/FStar,A-Manning/FStar,A-Manning/FStar,FStarLang/FStar,aa755/FStar,hoheinzollern/FStar,MallabaevAzamat/FStar,A-Manning/FStar,aa755/FStar,aa755/FStar,FStarLang/FStar,MallabaevAzamat/FStar,MallabaevAzamat/FStar,YaccConstructor/FStar,YaccConstructor/FStar,FStarLang/FStar,aa755/FStar,msprotz/FStar,msprotz/FStar,YaccConstructor/FStar,MallabaevAzamat/FStar,hoheinzollern/FStar,msprotz/FStar,hoheinzollern/FStar,hoheinzollern/FStar