Seekreadcompresseduint32 to struct tuple (#9222)

* seekReadTypeDefRowExtents returns a struct tuple

* seekReadCompressedUInt32 returns a struct tuple

Author: cartermp

src/absil/ilread.fs

@@ -199,17 +199,17 @@ let seekReadUInt16AsInt32 mdv addr = int32 (seekReadUInt16 mdv addr)
 
 let seekReadCompressedUInt32 mdv addr = 
     let b0 = seekReadByte mdv addr
-    if b0 <= 0x7Fuy then int b0, addr+1
+    if b0 <= 0x7Fuy then struct (int b0, addr+1)
     elif b0 <= 0xBFuy then 
         let b0 = b0 &&& 0x7Fuy
         let b1 = seekReadByteAsInt32 mdv (addr+1) 
-        (int b0 <<< 8) ||| int b1, addr+2
+        struct ((int b0 <<< 8) ||| int b1, addr+2)
     else 
         let b0 = b0 &&& 0x3Fuy
         let b1 = seekReadByteAsInt32 mdv (addr+1) 
         let b2 = seekReadByteAsInt32 mdv (addr+2) 
         let b3 = seekReadByteAsInt32 mdv (addr+3) 
-        (int b0 <<< 24) ||| (int b1 <<< 16) ||| (int b2 <<< 8) ||| int b3, addr+4
+        struct ((int b0 <<< 24) ||| (int b1 <<< 16) ||| (int b2 <<< 8) ||| int b3, addr+4)
 
 let seekReadSByte mdv addr = sbyte (seekReadByte mdv addr)
 let seekReadSingle mdv addr = singleOfBits (seekReadInt32 mdv addr)
@@ -226,11 +226,11 @@ let seekReadUTF8String mdv addr =
     System.Text.Encoding.UTF8.GetString (bytes, 0, bytes.Length)
 
 let seekReadBlob mdv addr = 
-    let len, addr = seekReadCompressedUInt32 mdv addr
+    let struct (len, addr) = seekReadCompressedUInt32 mdv addr
     seekReadBytes mdv addr len
 
 let seekReadUserString mdv addr = 
-    let len, addr = seekReadCompressedUInt32 mdv addr
+    let struct (len, addr) = seekReadCompressedUInt32 mdv addr
     let bytes = seekReadBytes mdv addr (len - 1)
     Encoding.Unicode.GetString(bytes, 0, bytes.Length)