Restart LLVM IR SSA generation

This is the third go and I'm going for it!

src/common.cpp

@@ -11,6 +11,8 @@ typedef struct String {
 #define LIT(x) (x).len, (x).text
 
 
+
+
 gb_inline String make_string(u8 *text, isize len) {
 	String s;
 	s.text = text;
@@ -90,6 +92,9 @@ gb_inline u64 hash_pointer(void *ptr) {
 
 
 
+#define gb_for_array(index_, array_) for (isize index_ = 0; index_ < gb_array_count(array_); index_++)
+
+
 // Doubly Linked Lists
 
 #define DLIST_SET(curr_element, next_element)  do { \