Avoid calling getClass() in equals(). It disturbs profiling

compiler/frontend/src/org/jetbrains/jet/lang/resolve/name/FqName.java

@@ -22,7 +22,7 @@ import org.jetbrains.annotations.NotNull;
 
 import java.util.List;
 
-public class FqName extends FqNameBase {
+public final class FqName extends FqNameBase {
 
     @NotNull
     public static FqName fromSegments(@NotNull List<String> names) {
@@ -156,7 +156,7 @@ public class FqName extends FqNameBase {
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
+        if (!(o instanceof FqName)) return false;
 
         FqName otherFqName = (FqName) o;
 

compiler/frontend/src/org/jetbrains/jet/lang/resolve/name/FqNameUnsafe.java

@@ -25,7 +25,7 @@ import java.util.List;
 /**
  * Like {@link FqName} but allows '<' and '>' characters in name.
  */
-public class FqNameUnsafe extends FqNameBase {
+public final class FqNameUnsafe extends FqNameBase {
 
     public static final Name ROOT_NAME = Name.special("<root>");
 
@@ -265,20 +265,18 @@ public class FqNameUnsafe extends FqNameBase {
 
     @Override
     public boolean equals(Object o) {
-        // generated by Idea
         if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
+        if (!(o instanceof FqNameUnsafe)) return false;
 
         FqNameUnsafe that = (FqNameUnsafe) o;
 
-        if (fqName != null ? !fqName.equals(that.fqName) : that.fqName != null) return false;
+        if (!fqName.equals(that.fqName)) return false;
 
         return true;
     }
 
     @Override
     public int hashCode() {
-        // generated by Idea
-        return fqName != null ? fqName.hashCode() : 0;
+        return fqName.hashCode();
     }
 }