group codegen test files into directories per test case

idea/testData/codegen/controlStructures/break.jet

@@ -0,0 +1,10 @@
+fun fac(i: Int): Int {
+    var count = 1;
+    var result = 1;
+    while(true) {
+        count = count + 1;
+        result = result * count;
+        if (count == i) break;
+    }
+    return result;
+}

idea/testData/codegen/controlStructures/continue.jet

@@ -0,0 +1,10 @@
+fun continue_test(i: Int): Int {
+  var count = i;
+  var result = 0;
+  while(count > 0) {
+    count = count - 1;
+    if (count <= 2) continue;
+    result = result + count;
+  }
+  return result;
+}

idea/testData/codegen/controlStructures/doWhile.jet

@@ -0,0 +1,9 @@
+fun fac(i: Int): Int {
+    var count = 1;
+    var result = 1;
+    do {
+        count = count + 1;
+        result = result * count;
+    } while(count != i);
+    return result;
+}

idea/testData/codegen/controlStructures/for.jet

@@ -0,0 +1,9 @@
+import java.util.*
+
+fun concat(l: List<String>): String? {
+  val sb = new StringBuilder()
+  for(s in l) {
+    sb.append(s)
+  }
+  sb.toString()
+}

idea/testData/codegen/controlStructures/forInArray.jet

@@ -0,0 +1,7 @@
+fun concat(l: Array<String>): String? {
+  val sb = new StringBuilder()
+  for(s in l) {
+    sb.append(s)
+  }
+  sb.toString()
+}

idea/testData/codegen/controlStructures/if.jet

@@ -0,0 +1 @@
+fun foo(b: Boolean): Int { return if (b) 15 else 20 }

idea/testData/codegen/controlStructures/ifNoElse.jet

@@ -0,0 +1,5 @@
+fun f(x: Int, b: Boolean): Int {
+  var result = x;
+  if (b) else result = result + 5;
+  return result;
+}

idea/testData/codegen/controlStructures/singleBranchIf.jet

@@ -0,0 +1,4 @@
+fun foo(b: Boolean) : Int {
+  if (b) return 15;
+  return 20;
+}

idea/testData/codegen/controlStructures/tryCatch.jet

@@ -0,0 +1,9 @@
+fun foo(s: String): String? {
+  try {
+    Integer.parseInt(s);
+    return "no message";
+  }
+  catch(e: NumberFormatException) {
+    return (e : Throwable).getMessage(); // Work around an overload-resolution bug
+  }
+}

idea/testData/codegen/controlStructures/while.jet

@@ -0,0 +1,9 @@
+fun fac(i: Int): Int {
+    var count = 1;
+    var result = 1;
+    while(count < i) {
+        count = count + 1;
+        result = result * count;
+    }
+    return result;
+}