[svn r261] Fixed debug info for integer and floating local variables, can now be inspected in GDB.

Did a lot of smaller cleans up here and there.
Replaced more llvm::Foo with LLFoo for common stuff.
Split up tollvm.cpp.

gen/linker.cpp

@@ -0,0 +1,25 @@
+#include "gen/llvm.h"
+#include "llvm/Linker.h"
+
+#include "root.h"
+#include "mars.h"
+
+typedef std::vector<llvm::Module*> Module_vector;
+
+void linkModules(llvm::Module* dst, const Module_vector& MV)
+{
+    if (MV.empty())
+        return;
+
+    llvm::Linker linker("llvmdc", dst);
+
+    std::string err;
+    for (Module_vector::const_iterator i=MV.begin(); i!=MV.end(); ++i)
+    {
+        if (!linker.LinkInModule(*i, &err))
+        {
+            error("%s", err.c_str());
+            fatal();
+        }
+    }
+}