Get codebase completely working with LLVM

You can now build Cosmopolitan with Clang:

    make -j8 MODE=llvm
    o/llvm/examples/hello.com

The assembler and linker code is now friendly to LLVM too.
So it's not needed to configure Clang to use binutils under
the hood. If you love LLVM then you can now use pure LLVM.

libc/calls/ktmppath.S

@@ -22,10 +22,10 @@
 
 #define kTmpPathMax 80
 
-/	RII constant holding /tmp/ directory.
-/
-/	@note	on win32 this is firstNonNull($TMP, $TEMP, $PWD)
-/	@note	guarantees trailing slash if non-empty
+//	RII constant holding /tmp/ directory.
+//
+//	@note	on win32 this is firstNonNull($TMP, $TEMP, $PWD)
+//	@note	guarantees trailing slash if non-empty
 	.initbss 300,_init_kTmpPath
 kTmpPath:
 	.zero	kTmpPathMax
@@ -33,8 +33,8 @@ kTmpPath:
 	.previous
 
 	.init.start 300,_init_kTmpPath
-	movl	$'/|'t<<010|'m<<020|'p<<030,(%rdi)
-	movw	$'/,4(%rdi)
+	movl	$'/'|'t'<<010|'m'<<020|'p'<<030,(%rdi)
+	movw	$'/',4(%rdi)
 #if SupportsWindows()
 	pushpop	kTmpPathMax,%rdx
 	ezlea	GetTempPathA_flunk,ax