Fix test names starting with uppercase using multi-line gdb_test/mi_gdb_test

Fix test names starting with uppercase using multi-line gdb_test/mi_gdb_test

This fixes offender testcases that have test names starting with uppercase
when using gdb_test/mi_gdb_test in a multi-line construct.

gdb/testsuite/ChangeLog
2016-12-01  Luis Machado  <lgustavo@codesourcery.com>

	Fix test names starting with uppercase throughout the files.

	* gdb.ada/array_return.exp
	* gdb.ada/expr_delims.exp
	* gdb.ada/mi_dyn_arr.exp
	* gdb.ada/mi_interface.exp
	* gdb.ada/mi_var_array.exp
	* gdb.ada/watch_arg.exp
	* gdb.arch/alpha-step.exp
	* gdb.arch/altivec-regs.exp
	* gdb.arch/e500-regs.exp
	* gdb.arch/powerpc-d128-regs.exp
	* gdb.base/arrayidx.exp
	* gdb.base/break.exp
	* gdb.base/checkpoint.exp
	* gdb.base/debug-expr.exp
	* gdb.base/dmsym.exp
	* gdb.base/radix.exp
	* gdb.base/sepdebug.exp
	* gdb.base/testenv.exp
	* gdb.base/watch_thread_num.exp
	* gdb.base/watchpoint-cond-gone.exp
	* gdb.cell/break.exp
	* gdb.cell/ea-cache.exp
	* gdb.compile/compile.exp
	* gdb.cp/gdb2495.exp
	* gdb.gdb/selftest.exp
	* gdb.gdb/xfullpath.exp
	* gdb.go/hello.exp
	* gdb.go/integers.exp
	* gdb.objc/basicclass.exp
	* gdb.pascal/hello.exp
	* gdb.pascal/integers.exp
	* gdb.python/py-breakpoint.exp
	* gdb.python/py-cmd.exp
	* gdb.python/py-linetable.exp
	* gdb.python/py-xmethods.exp
	* gdb.python/python.exp
	* gdb.reverse/consecutive-precsave.exp
	* gdb.reverse/finish-precsave.exp
	* gdb.reverse/i386-precsave.exp
	* gdb.reverse/machinestate-precsave.exp
	* gdb.reverse/sigall-precsave.exp
	* gdb.reverse/solib-precsave.exp
	* gdb.reverse/step-precsave.exp
	* gdb.reverse/until-precsave.exp
	* gdb.reverse/watch-precsave.exp
	* gdb.threads/leader-exit.exp
	* gdb.threads/pthreads.exp
	* gdb.threads/wp-replication.exp
	* gdb.trace/actions.exp
	* gdb.trace/mi-tsv-changed.exp
	* gdb.trace/tsv.exp