#2132 - Replace all uses of foo_callback with foo

ale_linters/verilog/iverilog.vim

@@ -38,6 +38,6 @@ call ale#linter#Define('verilog', {
 \   'name': 'iverilog',
 \   'output_stream': 'stderr',
 \   'executable': 'iverilog',
-\   'command_callback': 'ale_linters#verilog#iverilog#GetCommand',
+\   'command': function('ale_linters#verilog#iverilog#GetCommand'),
 \   'callback': 'ale_linters#verilog#iverilog#Handle',
 \})

ale_linters/verilog/verilator.vim

@@ -53,7 +53,7 @@ call ale#linter#Define('verilog', {
 \   'name': 'verilator',
 \   'output_stream': 'stderr',
 \   'executable': 'verilator',
-\   'command_callback': 'ale_linters#verilog#verilator#GetCommand',
+\   'command': function('ale_linters#verilog#verilator#GetCommand'),
 \   'callback': 'ale_linters#verilog#verilator#Handle',
 \   'read_buffer': 0,
 \})

ale_linters/verilog/vlog.vim

@@ -30,7 +30,7 @@ endfunction
 call ale#linter#Define('verilog', {
 \   'name': 'vlog',
 \   'output_stream': 'stdout',
-\   'executable_callback': ale#VarFunc('verilog_vlog_executable'),
-\   'command_callback': 'ale_linters#verilog#vlog#GetCommand',
+\   'executable': {b -> ale#Var(b, 'verilog_vlog_executable')},
+\   'command': function('ale_linters#verilog#vlog#GetCommand'),
 \   'callback': 'ale_linters#verilog#vlog#Handle',
 \})

ale_linters/verilog/xvlog.vim

@@ -29,7 +29,7 @@ endfunction
 call ale#linter#Define('verilog', {
 \   'name': 'xvlog',
 \   'output_stream': 'stdout',
-\   'executable_callback': ale#VarFunc('verilog_xvlog_executable'),
-\   'command_callback': 'ale_linters#verilog#xvlog#GetCommand',
+\   'executable': {b -> ale#Var(b, 'verilog_xvlog_executable')},
+\   'command': function('ale_linters#verilog#xvlog#GetCommand'),
 \   'callback': 'ale_linters#verilog#xvlog#Handle',
 \})