Remove ports of obsolete and unmaintained upstream llvm/clang 3.2.

Mark pure as BROKEN by this removal.  It should be updated to a recent
release that supports llvm 3.5, but has seen no substantive updates in
over a year.

Cleanup plist

- Convert ports of irc/ and lang/ to new USES=python

Approved by:	portmgr (implicit)

Convert GMAKE to MAKE_CMD
Please note that lots of invocation of MAKE_CMD here are wrong as they do not
properly respect MAKE_ENV and friends

With hat:	portmgr

Replace %%DATADIR%% in patched scan-build.

PR:		ports/187193, ports/187243
Submitted by:	Li-Wen Hsu <lwhsu@FreeBSD.org>

Apply the clang portion of r255321 from base switching the default C++
library to libc++ on 10+.

PR:		ports/183956
Submitted by:	dpl

If the ASSERTS option is enabled, make sure it was enabled in the
corresponding devel/llvm## port as build fails otherwise.

Correct conflicting ldconfig config files by setting UNIQUENAME.

Strip installed libraries with ${STRIP_CMD}.

Some whitespace tidying.

- Fix PKGNAME to be clang32 instead of clang/usr/local/llvm32-3.2

Reported by:	many

Add llvm32 and clang32 ports modeled on the llvm33 and clang33 ports.
These ports install binaries with "32" suffixes and most data lives in
${PREFIX}/llvm32 so there are no conflicts.

NOTE: devel/llvm and lang/clang will shortly be removed in favor of
these ports.