alpha.c (output_prolog [*]): Prefix entry labels with '$' to keep them from being propogated to the object file.

        * alpha.c (output_prolog [*]): Prefix entry labels with '$' to
        keep them from being propogated to the object file.
        (alpha_write_linkage): Likewise.
        * alpha.md (call_vms): Likewise.
        (call_value_vms): Likewise.
        (unnamed osf call insns): Likewise.

        * alpha.h (ASM_OUTPUT_INTERNAL_LABEL): Don't omit L from local label.
        (ASM_GENERATE_INTERNAL_LABEL): Likewise.

From-SVN: r16490