FindFirstMigration: use ifPresent when stream element type is primitive and the final statement is an assignment

This case is possible only if we have no non-final locals updated in the loop, so the assignment updates field or array element.
Using common assignment scenario may not work as primitive optionals lack map/filter operations
Fixes IDEA-200209 "Replace with findFirst" produces incompilable code

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/streamApiMigration/findFirst/afterFindFirstMap.java

@@ -0,0 +1,19 @@
+// "Replace with findFirst()" "true"
+
+import java.util.stream.IntStream;
+
+class Lookup {
+  boolean matches(char[] lookup) {}
+}
+
+// IDEA-200209
+class C {
+  private Lookup[] lookbehindFormats;
+  private char[] lookupChars;
+  private Lookup lookbehindFormat;
+
+  {
+      IntStream.range(0, lookbehindFormats.length).filter(i -> lookbehindFormats[i].matches(lookupChars)).findFirst().ifPresent(i -> lookbehindFormat = lookbehindFormats[i]);
+
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/streamApiMigration/findFirst/beforeFindFirstMap.java

@@ -0,0 +1,22 @@
+// "Replace with findFirst()" "true"
+
+class Lookup {
+  boolean matches(char[] lookup) {}
+}
+
+// IDEA-200209
+class C {
+  private Lookup[] lookbehindFormats;
+  private char[] lookupChars;
+  private Lookup lookbehindFormat;
+
+  {
+    for (int i = 0; i < lookbehin<caret>dFormats.length; i++) {
+      if (lookbehindFormats[i].matches(lookupChars)) {
+        lookbehindFormat = lookbehindFormats[i];
+        break;
+      }
+    }
+
+  }
+}