Have declare_table_elements consume its elements argument.

The producer is already allocating a new Vec, so no need to require the
consumer to allocate one too.

lib/wasm/src/runtime/dummy.rs

@@ -254,7 +254,7 @@ impl<'data> ModuleEnvironment<'data> for DummyEnvironment {
         _table_index: TableIndex,
         _base: Option<GlobalIndex>,
         _offset: usize,
-        _elements: &[FunctionIndex],
+        _elements: Vec<FunctionIndex>,
     ) {
         // We do nothing
     }

lib/wasm/src/runtime/spec.rs

@@ -190,7 +190,7 @@ pub trait ModuleEnvironment<'data> {
         table_index: TableIndex,
         base: Option<GlobalIndex>,
         offset: usize,
-        elements: &[FunctionIndex],
+        elements: Vec<FunctionIndex>,
     );
     /// Declares a memory to the environment
     fn declare_memory(&mut self, memory: Memory);

lib/wasm/src/sections_translator.rs

@@ -364,7 +364,7 @@ pub fn parse_elements_section(
             ParserState::ElementSectionEntryBody(ref elements) => {
                 let elems: Vec<FunctionIndex> =
                     elements.iter().map(|&x| x as FunctionIndex).collect();
-                environ.declare_table_elements(table_index, base, offset, &elems)
+                environ.declare_table_elements(table_index, base, offset, elems)
             }
             ref s => return Err(SectionParsingError::WrongSectionContent(format!("{:?}", s))),
         };