[gdb/testsuite] Rename *.exp.in to *.exp.tcl

[gdb/testsuite] Rename *.exp.in to *.exp.tcl

Say we have some common tcl code that we want to include in test-cases
t1.exp and t1.exp.

We could put the common code into a file common.exp alongside the test-cases,
but that will make dejagnu treat that file as another test-case.  To prevent
this, we use a suffix, currently .in, in other words we put the common code in
a file common.exp.in.

The .in suffix however is also used in autoconf, which might cause confusion.

Change the suffix from .in to .tcl.

gdb/testsuite/ChangeLog:

2020-05-15  Tom de Vries  <tdevries@suse.de>

	* gdb.base/align.exp.in: Rename to ...
	* gdb.base/align.exp.tcl: ... this.
	* gdb.base/align-c++.exp: Update.
	* gdb.base/align-c.exp: Update.
	* gdb.base/all-architectures.exp.in: Rename to ...
	* gdb.base/all-architectures.exp: ... this.
	* gdb.base/all-architectures-0.exp: Update.
	* gdb.base/all-architectures-1.exp: Update.
	* gdb.base/all-architectures-2.exp: Update.
	* gdb.base/all-architectures-3.exp: Update.
	* gdb.base/all-architectures-4.exp: Update.
	* gdb.base/all-architectures-5.exp: Update.
	* gdb.base/all-architectures-6.exp: Update.
	* gdb.base/all-architectures-7.exp: Update.
	* gdb.base/infcall-nested-structs.exp.in: Rename to ...
	* gdb.base/infcall-nested-structs.exp.tcl: ... this.
	* gdb.base/infcall-nested-structs-c++.exp: Update.
	* gdb.base/infcall-nested-structs-c.exp: Update.
	* gdb.base/info-types.exp.in: Rename to ...
	* gdb.base/info-types.exp.tcl: ... this.
	* gdb.base/info-types-c++.exp: Update.
	* gdb.base/info-types-c.exp: Update.
	* gdb.base/max-depth.exp.in: Rename to ...
	* gdb.base/max-depth.exp.tcl: ... this.
	* gdb.base/max-depth-c++.exp: Update.
	* gdb.base/max-depth-c.exp: Update.
	* gdb.cp/cpexprs.exp.in: Rename to ...
	* gdb.cp/cpexprs.exp.tcl: ... this.
	* gdb.cp/cpexprs-debug-types.exp: Update.
	* gdb.cp/cpexprs.exp: Update.
	* gdb.cp/infcall-nodebug.exp.in: Rename to ...
	* gdb.cp/infcall-nodebug.exp.tcl: ... this.
	* gdb.cp/infcall-nodebug-c++-d0.exp: Update.
	* gdb.cp/infcall-nodebug-c++-d1.exp: Update.
	* gdb.cp/infcall-nodebug-c-d0.exp: Update.
	* gdb.cp/infcall-nodebug-c-d1.exp: Update.
	* gdb.dwarf2/clang-debug-names.exp.in: Rename to ...
	* gdb.dwarf2/clang-debug-names.exp.tcl: ... this.
	* gdb.dwarf2/clang-debug-names-2.exp: Update.
	* gdb.dwarf2/clang-debug-names.exp: Update.