Misc clippy fixes

Author: emesare

rust/src/hlil/block.rs

@@ -16,7 +16,7 @@ impl Iterator for HighLevelILBlockIter {
     fn next(&mut self) -> Option<Self::Item> {
         self.range
             .next()
-            .map(|i| HighLevelInstructionIndex(i))
+            .map(HighLevelInstructionIndex)
             // TODO: Is this already MAPPED>!>?!? If so we map twice that is BAD!!!!
             .and_then(|i| self.function.instruction_from_index(i))
     }

rust/src/lowlevelil/block.rs

@@ -42,7 +42,7 @@ where
     fn next(&mut self) -> Option<Self::Item> {
         self.range
             .next()
-            .map(|idx| LowLevelInstructionIndex(idx))
+            .map(LowLevelInstructionIndex)
             .and_then(|idx| self.function.instruction_from_index(idx))
     }
 }

rust/src/mlil/block.rs

@@ -55,7 +55,7 @@ impl Iterator for MediumLevelILBlockIter {
     fn next(&mut self) -> Option<Self::Item> {
         self.range
             .next()
-            .map(|i| MediumLevelInstructionIndex(i))
+            .map(MediumLevelInstructionIndex)
             // TODO: What if this is already mapped!?!?!? we will map twice!?!?!?
             .and_then(|i| self.function.instruction_from_index(i))
     }

rust/src/operand_iter.rs

@@ -188,7 +188,7 @@ impl<F: ILFunction + RefCountable> Iterator for OperandExprIter<F> {
     fn next(&mut self) -> Option<Self::Item> {
         self.0
             .next()
-            .map(|i| F::InstructionIndex::from(i))
+            .map(F::InstructionIndex::from)
             .map(|idx| self.0.function.il_instruction_from_index(idx))
     }
 }