Swap order of masks when assigning bytes to byte[] elements.

Masking a byte by 0xFF does nothing, and the optimizer can see that. I don't think these 0xFF masks do anything in java... but they're in a lot of places so if we remove them entirely it'll be in another CL.

Before (android):
```
ldr w3, [x1, #12]
and w4, w2, #0x7f
orr w4, w4, #0x80
add w5, w3, #0x1 (1)
sxtb w4, w4
```
after:
```
ldr w3, [x1, #12]
orr w4, w2, #0x80
add w5, w3, #0x1 (1)
sxtb w4, w4
```
PiperOrigin-RevId: 590766320

Author: protobuf-github-bot

java/core/src/main/java/com/google/protobuf/CodedOutputStream.java

@@ -1326,7 +1326,7 @@ public final void writeUInt32NoTag(int value) throws IOException {
             buffer[position++] = (byte) value;
             return;
           } else {
-            buffer[position++] = (byte) ((value & 0x7F) | 0x80);
+            buffer[position++] = (byte) ((value | 0x80) & 0xFF);
             value >>>= 7;
           }
         }
@@ -1357,7 +1357,7 @@ public final void writeUInt64NoTag(long value) throws IOException {
             UnsafeUtil.putByte(buffer, position++, (byte) value);
             return;
           } else {
-            UnsafeUtil.putByte(buffer, position++, (byte) (((int) value & 0x7F) | 0x80));
+            UnsafeUtil.putByte(buffer, position++, (byte) (((int) value | 0x80) & 0xFF));
             value >>>= 7;
           }
         }
@@ -1368,7 +1368,7 @@ public final void writeUInt64NoTag(long value) throws IOException {
               buffer[position++] = (byte) value;
               return;
             } else {
-              buffer[position++] = (byte) (((int) value & 0x7F) | 0x80);
+              buffer[position++] = (byte) (((int) value | 0x80) & 0xFF);
               value >>>= 7;
             }
           }
@@ -1684,7 +1684,7 @@ public void writeUInt32NoTag(int value) throws IOException {
             buffer.put((byte) value);
             return;
           } else {
-            buffer.put((byte) ((value & 0x7F) | 0x80));
+            buffer.put((byte) ((value | 0x80) & 0xFF));
             value >>>= 7;
           }
         }
@@ -1710,7 +1710,7 @@ public void writeUInt64NoTag(long value) throws IOException {
             buffer.put((byte) value);
             return;
           } else {
-            buffer.put((byte) (((int) value & 0x7F) | 0x80));
+            buffer.put((byte) (((int) value | 0x80) & 0xFF));
             value >>>= 7;
           }
         }
@@ -2015,7 +2015,7 @@ public void writeUInt32NoTag(int value) throws IOException {
             UnsafeUtil.putByte(position++, (byte) value);
             return;
           } else {
-            UnsafeUtil.putByte(position++, (byte) ((value & 0x7F) | 0x80));
+            UnsafeUtil.putByte(position++, (byte) ((value | 0x80) & 0xFF));
             value >>>= 7;
           }
         }
@@ -2025,7 +2025,7 @@ public void writeUInt32NoTag(int value) throws IOException {
             UnsafeUtil.putByte(position++, (byte) value);
             return;
           } else {
-            UnsafeUtil.putByte(position++, (byte) ((value & 0x7F) | 0x80));
+            UnsafeUtil.putByte(position++, (byte) ((value | 0x80) & 0xFF));
             value >>>= 7;
           }
         }
@@ -2049,7 +2049,7 @@ public void writeUInt64NoTag(long value) throws IOException {
             UnsafeUtil.putByte(position++, (byte) value);
             return;
           } else {
-            UnsafeUtil.putByte(position++, (byte) (((int) value & 0x7F) | 0x80));
+            UnsafeUtil.putByte(position++, (byte) (((int) value | 0x80) & 0xFF));
             value >>>= 7;
           }
         }
@@ -2059,7 +2059,7 @@ public void writeUInt64NoTag(long value) throws IOException {
             UnsafeUtil.putByte(position++, (byte) value);
             return;
           } else {
-            UnsafeUtil.putByte(position++, (byte) (((int) value & 0x7F) | 0x80));
+            UnsafeUtil.putByte(position++, (byte) (((int) value| 0x80) & 0xFF));
             value >>>= 7;
           }
         }
@@ -2259,7 +2259,7 @@ final void bufferUInt32NoTag(int value) {
             UnsafeUtil.putByte(buffer, position++, (byte) value);
             break;
           } else {
-            UnsafeUtil.putByte(buffer, position++, (byte) ((value & 0x7F) | 0x80));
+            UnsafeUtil.putByte(buffer, position++, (byte) ((value | 0x80) & 0xFF));
             value >>>= 7;
           }
         }
@@ -2272,7 +2272,7 @@ final void bufferUInt32NoTag(int value) {
             totalBytesWritten++;
             return;
           } else {
-            buffer[position++] = (byte) ((value & 0x7F) | 0x80);
+            buffer[position++] = (byte) ((value | 0x80) & 0xFF);
             totalBytesWritten++;
             value >>>= 7;
           }
@@ -2292,7 +2292,7 @@ final void bufferUInt64NoTag(long value) {
             UnsafeUtil.putByte(buffer, position++, (byte) value);
             break;
           } else {
-            UnsafeUtil.putByte(buffer, position++, (byte) (((int) value & 0x7F) | 0x80));
+            UnsafeUtil.putByte(buffer, position++, (byte) (((int) value | 0x80) & 0xFF));
             value >>>= 7;
           }
         }
@@ -2305,7 +2305,7 @@ final void bufferUInt64NoTag(long value) {
             totalBytesWritten++;
             return;
           } else {
-            buffer[position++] = (byte) (((int) value & 0x7F) | 0x80);
+            buffer[position++] = (byte) (((int) value | 0x80) & 0xFF);
             totalBytesWritten++;
             value >>>= 7;
           }