IDEA-243019 Unroll loop: get loop size from dataflow

GitOrigin-RevId: 0ba4a16c098414fcb539502446b6cd138922f398

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/unrollLoop/afterUnrollArrayDfa.java

@@ -0,0 +1,19 @@
+// "Unroll loop" "true"
+import java.util.Arrays;
+
+class X {
+  void test() {
+    int[] array = new int[10];
+    Arrays.setAll(array, i -> i);
+      System.out.println(array[0]);
+      System.out.println(array[1]);
+      System.out.println(array[2]);
+      System.out.println(array[3]);
+      System.out.println(array[4]);
+      System.out.println(array[5]);
+      System.out.println(array[6]);
+      System.out.println(array[7]);
+      System.out.println(array[8]);
+      System.out.println(array[9]);
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/unrollLoop/afterUnrollDfa.java

@@ -0,0 +1,14 @@
+// "Unroll loop" "true"
+import java.util.Arrays;
+
+class X {
+  void testLoop(int size) {
+    if (size == 5) {
+        System.out.println(0);
+        System.out.println(1);
+        System.out.println(2);
+        System.out.println(3);
+        System.out.println(4);
+    }
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/unrollLoop/afterUnrollListDfa.java

@@ -0,0 +1,11 @@
+// "Unroll loop" "true"
+import java.util.List;
+
+class X {
+  void testList(List<String> list) {
+    if (list.size() == 2) {
+        System.out.println(list.get(0));
+        System.out.println(list.get(1));
+    }
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/unrollLoop/beforeUnrollArrayDfa.java

@@ -0,0 +1,12 @@
+// "Unroll loop" "true"
+import java.util.Arrays;
+
+class X {
+  void test() {
+    int[] array = new int[10];
+    Arrays.setAll(array, i -> i);
+    <caret>for (int i : array) {
+      System.out.println(i);
+    }
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/unrollLoop/beforeUnrollDfa.java

@@ -0,0 +1,12 @@
+// "Unroll loop" "true"
+import java.util.Arrays;
+
+class X {
+  void testLoop(int size) {
+    if (size == 5) {
+      <caret>for (int i = 0; i < size; i++) {
+        System.out.println(i);
+      }
+    }
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/unrollLoop/beforeUnrollListDfa.java

@@ -0,0 +1,12 @@
+// "Unroll loop" "true"
+import java.util.List;
+
+class X {
+  void testList(List<String> list) {
+    if (list.size() == 2) {
+      <caret>for (String s : list) {
+        System.out.println(s);
+      }
+    }
+  }
+}