[FIR-TEST] Add new testdata generated after changes in previous commit

compiler/testData/diagnostics/tests/senselessComparison/noExplicitType.fir.kt

@@ -0,0 +1,15 @@
+fun readLine() = "x"
+
+fun foo() {
+    var line = ""
+
+    while (line != null) {
+        line = readLine()
+
+        if (line != null) {
+            bar()
+        }
+    }
+}
+
+fun bar() {}

compiler/testData/diagnostics/tests/senselessComparison/parenthesized.fir.kt

@@ -0,0 +1,23 @@
+fun testEquals(x: Int) {
+    if (x == null) {}
+    if (x == (null)) {}
+    if (x == foo@ null) {}
+}
+
+fun testEqualsFlipped(x: Int) {
+    if (null == x) {}
+    if ((null) == x) {}
+    if (foo@ null == x) {}
+}
+
+fun testNotEquals(x: Int) {
+    if (x != null) {}
+    if (x != (null)) {}
+    if (x != foo@ null) {}
+}
+
+fun testNotEqualsFlipped(x: Int) {
+    if (null != x) {}
+    if ((null) != x) {}
+    if (foo@ null != x) {}
+}