PR c++/14999:
	* dwarf2loc.c (dwarf2_compile_expr_to_ax) <DW_OP_fbreg>:
	Call require_rvalue.
gdb/testsuite
	* gdb.dwarf2/trace-crash.s: New file.
	* gdb.dwarf2/trace-crash.exp: New file.
gdb/testsuite
	* gdb.base/label.c (main): Correct the type of the second
	parameter.
gdb
	* MAINTAINERS (Write After Approval): Add "David Blaikie".
gdb
	* ChangeLog: Fix errors in my previous commit: whitespace->tabs, date,
	and trailing blank line. (from review by Sergio Durigan Junior)