Don't write field signatures when not necessary

compiler/tests/org/jetbrains/kotlin/serialization/jvm/DebugJvmProtoBuf.java

@@ -2673,19 +2673,19 @@ public final class DebugJvmProtoBuf {
   public interface JvmFieldSignatureOrBuilder
       extends com.google.protobuf.MessageOrBuilder {
 
-    // required int32 name = 1;
+    // optional int32 name = 1;
     /**
-     * <code>required int32 name = 1;</code>
+     * <code>optional int32 name = 1;</code>
      */
     boolean hasName();
     /**
-     * <code>required int32 name = 1;</code>
+     * <code>optional int32 name = 1;</code>
      */
     int getName();
 
-    // required int32 desc = 2;
+    // optional int32 desc = 2;
     /**
-     * <code>required int32 desc = 2;</code>
+     * <code>optional int32 desc = 2;</code>
      *
      * <pre>
      * JVM descriptor of the field type, e.g. 'Ljava/lang/String;'
@@ -2693,7 +2693,7 @@ public final class DebugJvmProtoBuf {
      */
     boolean hasDesc();
     /**
-     * <code>required int32 desc = 2;</code>
+     * <code>optional int32 desc = 2;</code>
      *
      * <pre>
      * JVM descriptor of the field type, e.g. 'Ljava/lang/String;'
@@ -2827,27 +2827,27 @@ public final class DebugJvmProtoBuf {
     }
 
     private int bitField0_;
-    // required int32 name = 1;
+    // optional int32 name = 1;
     public static final int NAME_FIELD_NUMBER = 1;
     private int name_;
     /**
-     * <code>required int32 name = 1;</code>
+     * <code>optional int32 name = 1;</code>
      */
     public boolean hasName() {
       return ((bitField0_ & 0x00000001) == 0x00000001);
     }
     /**
-     * <code>required int32 name = 1;</code>
+     * <code>optional int32 name = 1;</code>
      */
     public int getName() {
       return name_;
     }
 
-    // required int32 desc = 2;
+    // optional int32 desc = 2;
     public static final int DESC_FIELD_NUMBER = 2;
     private int desc_;
     /**
-     * <code>required int32 desc = 2;</code>
+     * <code>optional int32 desc = 2;</code>
      *
      * <pre>
      * JVM descriptor of the field type, e.g. 'Ljava/lang/String;'
@@ -2857,7 +2857,7 @@ public final class DebugJvmProtoBuf {
       return ((bitField0_ & 0x00000002) == 0x00000002);
     }
     /**
-     * <code>required int32 desc = 2;</code>
+     * <code>optional int32 desc = 2;</code>
      *
      * <pre>
      * JVM descriptor of the field type, e.g. 'Ljava/lang/String;'
@@ -2903,14 +2903,6 @@ public final class DebugJvmProtoBuf {
       byte isInitialized = memoizedIsInitialized;
       if (isInitialized != -1) return isInitialized == 1;
 
-      if (!hasName()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
-      if (!hasDesc()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
       memoizedIsInitialized = 1;
       return true;
     }
@@ -3140,14 +3132,6 @@ public final class DebugJvmProtoBuf {
       }
 
       public final boolean isInitialized() {
-        if (!hasName()) {
-          
-          return false;
-        }
-        if (!hasDesc()) {
-          
-          return false;
-        }
         return true;
       }
 
@@ -3170,22 +3154,22 @@ public final class DebugJvmProtoBuf {
       }
       private int bitField0_;
 
-      // required int32 name = 1;
+      // optional int32 name = 1;
       private int name_ ;
       /**
-       * <code>required int32 name = 1;</code>
+       * <code>optional int32 name = 1;</code>
        */
       public boolean hasName() {
         return ((bitField0_ & 0x00000001) == 0x00000001);
       }
       /**
-       * <code>required int32 name = 1;</code>
+       * <code>optional int32 name = 1;</code>
        */
       public int getName() {
         return name_;
       }
       /**
-       * <code>required int32 name = 1;</code>
+       * <code>optional int32 name = 1;</code>
        */
       public Builder setName(int value) {
         bitField0_ |= 0x00000001;
@@ -3194,7 +3178,7 @@ public final class DebugJvmProtoBuf {
         return this;
       }
       /**
-       * <code>required int32 name = 1;</code>
+       * <code>optional int32 name = 1;</code>
        */
       public Builder clearName() {
         bitField0_ = (bitField0_ & ~0x00000001);
@@ -3203,10 +3187,10 @@ public final class DebugJvmProtoBuf {
         return this;
       }
 
-      // required int32 desc = 2;
+      // optional int32 desc = 2;
       private int desc_ ;
       /**
-       * <code>required int32 desc = 2;</code>
+       * <code>optional int32 desc = 2;</code>
        *
        * <pre>
        * JVM descriptor of the field type, e.g. 'Ljava/lang/String;'
@@ -3216,7 +3200,7 @@ public final class DebugJvmProtoBuf {
         return ((bitField0_ & 0x00000002) == 0x00000002);
       }
       /**
-       * <code>required int32 desc = 2;</code>
+       * <code>optional int32 desc = 2;</code>
        *
        * <pre>
        * JVM descriptor of the field type, e.g. 'Ljava/lang/String;'
@@ -3226,7 +3210,7 @@ public final class DebugJvmProtoBuf {
         return desc_;
       }
       /**
-       * <code>required int32 desc = 2;</code>
+       * <code>optional int32 desc = 2;</code>
        *
        * <pre>
        * JVM descriptor of the field type, e.g. 'Ljava/lang/String;'
@@ -3239,7 +3223,7 @@ public final class DebugJvmProtoBuf {
         return this;
       }
       /**
-       * <code>required int32 desc = 2;</code>
+       * <code>optional int32 desc = 2;</code>
        *
        * <pre>
        * JVM descriptor of the field type, e.g. 'Ljava/lang/String;'
@@ -3641,12 +3625,6 @@ public final class DebugJvmProtoBuf {
       byte isInitialized = memoizedIsInitialized;
       if (isInitialized != -1) return isInitialized == 1;
 
-      if (hasField()) {
-        if (!getField().isInitialized()) {
-          memoizedIsInitialized = 0;
-          return false;
-        }
-      }
       memoizedIsInitialized = 1;
       return true;
     }
@@ -3928,12 +3906,6 @@ public final class DebugJvmProtoBuf {
       }
 
       public final boolean isInitialized() {
-        if (hasField()) {
-          if (!getField().isInitialized()) {
-            
-            return false;
-          }
-        }
         return true;
       }
 
@@ -4621,8 +4593,8 @@ public final class DebugJvmProtoBuf {
       "\022\030\n\024INTERNAL_TO_CLASS_ID\020\001\022\024\n\020DESC_TO_CL" +
       "ASS_ID\020\002\"<\n\022JvmMethodSignature\022\022\n\004name\030\001" +
       " \001(\005B\004\230\265\030\001\022\022\n\004desc\030\002 \001(\005B\004\230\265\030\001\"^\n\021JvmFie" +
-      "ldSignature\022\022\n\004name\030\001 \002(\005B\004\230\265\030\001\022\022\n\004desc\030" +
-      "\002 \002(\005B\004\230\265\030\001\022!\n\022is_static_in_outer\030\003 \001(\010:" +
+      "ldSignature\022\022\n\004name\030\001 \001(\005B\004\230\265\030\001\022\022\n\004desc\030" +
+      "\002 \001(\005B\004\230\265\030\001\022!\n\022is_static_in_outer\030\003 \001(\010:" +
       "\005false\"\316\002\n\024JvmPropertySignature\022H\n\005field",
       "\030\001 \001(\01329.org.jetbrains.kotlin.serializat" +
       "ion.jvm.JvmFieldSignature\022T\n\020synthetic_m" +