Break out bytecodeText/conditions tests into smaller tests for if/while/do-while.

compiler/testData/codegen/bytecodeText/conditions/zeroCompareInIf.kt

@@ -0,0 +1,49 @@
+// Generates ICONST_1
+val a = 1
+
+fun main() {
+    // Generates IFNE and GOTO
+    if (a == 0) {
+        "then"
+    } else {
+        "else"
+    }
+
+    // Generates IFLE and GOTO
+    if (a > 0) {
+        "then"
+    } else {
+        "else"
+    }
+
+    // Generates IFLT and GOTO
+    if (a >= 0) {
+        "then"
+    } else {
+        "else"
+    }
+
+    // Generates IFGE and GOTO
+    if (a < 0) {
+        "then"
+    } else {
+        "else"
+    }
+
+    // Generates IFGT and GOTO
+    if (a <= 0) {
+        "then"
+    } else {
+        "else"
+    }
+}
+
+//0 ICONST_0
+//1 ICONST_1
+//1 IFNE
+//1 IFLE
+//1 IFLT
+//1 IFGE
+//1 IFGT
+//5 IF
+//5 GOTO