Code cleanup.

Last minute code clean up to fix some comments and rename `address_space_size`
to `memory_reservation_size` to better describe what the option is doing.

tests/all/async_functions.rs

@@ -378,7 +378,7 @@ fn async_with_pooling_stacks() {
             },
             instance_limits: InstanceLimits {
                 count: 1,
-                address_space_size: 1,
+                memory_reservation_size: 1,
             },
         })
         .expect("pooling allocator created");

tests/all/pooling_allocator.rs

@@ -13,7 +13,7 @@ fn successful_instantiation() -> Result<()> {
         },
         instance_limits: InstanceLimits {
             count: 1,
-            address_space_size: 1,
+            memory_reservation_size: 1,
         },
     })?;
 
@@ -39,7 +39,7 @@ fn memory_limit() -> Result<()> {
         },
         instance_limits: InstanceLimits {
             count: 1,
-            address_space_size: 196608,
+            memory_reservation_size: 196608,
         },
     })?;
 
@@ -191,7 +191,7 @@ fn memory_zeroed() -> Result<()> {
         },
         instance_limits: InstanceLimits {
             count: 1,
-            address_space_size: 1,
+            memory_reservation_size: 1,
         },
     })?;
 
@@ -234,7 +234,7 @@ fn table_limit() -> Result<()> {
         },
         instance_limits: InstanceLimits {
             count: 1,
-            address_space_size: 1,
+            memory_reservation_size: 1,
         },
     })?;
 
@@ -349,7 +349,7 @@ fn table_zeroed() -> Result<()> {
         },
         instance_limits: InstanceLimits {
             count: 1,
-            address_space_size: 1,
+            memory_reservation_size: 1,
         },
     })?;
 
@@ -391,7 +391,7 @@ fn instantiation_limit() -> Result<()> {
         },
         instance_limits: InstanceLimits {
             count: INSTANCE_LIMIT,
-            address_space_size: 1,
+            memory_reservation_size: 1,
         },
     })?;