SLOW_BUILD, 2 additional build targets, improve word complete

src/basic/basic_array.h

@@ -165,7 +165,7 @@ Slice<T> GetSlice(Slice<T> &arr, int64_t first_index = 0, int64_t one_past_last_
 }
 
 // Make arrays resize on every item
-#define ARRAY_DEBUG 0
+#define ARRAY_DEBUG BUILD_SLOW
 #if ARRAY_DEBUG
     #define ARRAY_IF_DEBUG_ELSE(IF, ELSE) IF
 #else
@@ -310,6 +310,16 @@ bool Contains(Array<T> &arr, T item) {
     return false;
 }
 
+template<class T>
+int64_t FindValueIndex(Array<T> &arr, T item) {
+    for (int64_t i = 0; i < arr.len; i += 1) {
+        if (arr.data[i] == item) {
+            return i;
+        }
+    }
+    return -1;
+}
+
 template <class T>
 int64_t GetIndex(Array<T> &arr, const T &item) {
     ptrdiff_t index = (ptrdiff_t)(&item - arr.data);