StreamApiMigration: minor fixes in FindFirst scenarios

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/streamApiMigration/afterFindFirstValueReused.java

@@ -0,0 +1,14 @@
+// "Replace with findFirst()" "true"
+
+import java.util.stream.IntStream;
+
+public class Test {
+  public static void main(String[] args) {
+    String s = "  hello  ";
+    String res = s.trim();
+    if(args.length == 0) {
+        res = IntStream.range(0, s.length()).boxed().filter(x -> s.charAt(x) == 'l').findFirst().map(String::valueOf).orElse(res);
+    }
+    System.out.println(res);
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/streamApiMigration/beforeFindFirstValueReused.java

@@ -0,0 +1,18 @@
+// "Replace with findFirst()" "true"
+
+public class Test {
+  public static void main(String[] args) {
+    String s = "  hello  ";
+    String res = s.trim();
+    if(args.length == 0) {
+      for (<caret>int i = 0; i < s.length(); i++) {
+        Integer x = i;
+        if (s.charAt(x) == 'l') {
+          res = String.valueOf(x);
+          break;
+        }
+      }
+    }
+    System.out.println(res);
+  }
+}